president obama is preparing for tomorrow's debate in nevada. he has not made any campaign appearances since sunday. >>> a pennsylvania judge is expected to issue a ruling today that could have a huge impact on who wins that the battle ground state next month. they'll decide whether to keep that state's voter i.d. law intact. democrats argue it would keep minor the ities in the november election. republicans say it would cut down on voter fraud. >>> today marks the tenth anniversary of the beltway sniper killing spree. the first attack happened in a parking lot in wheaton, maryland. in all ten people were killed, three others wounded, in a three-week stretch that terrified the d.c. region. police eventually arrested john allen muhammad and lee boyd malvo for the shootings. they were later convicted. muhammad was executed in 2009. malvo, who was 17 at the time of the shootings, is currently serving a life sentence without the possibility of parole. >>> students at american university are being told to walk in groups and only in well lit areas aft